======================================
| [   27.770692][    C2] rcu_scheduler_active = 2, debug_locks = 1
| [   27.771055][    C2] no locks held by ksoftirqd/2/27.
| [   27.771310][    C2]
| [   27.771310][    C2] stack backtrace:
[   27.771636][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.771639][    C2] Call Trace:
[   27.771641][    C2]  <TASK>
[ 27.771644][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 27.771657][ C2] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 27.771669][ C2] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 27.771676][ C2] ? ip_local_deliver_finish (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/ipv4/ip_input.c:234) 
[ 27.771686][ C2] ? ip_local_deliver_finish (net/ipv4/ip_input.c:237) 
[ 27.771692][ C2] ? ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 27.771698][ C2] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 27.771705][ C2] ? ip_rcv_finish_core (./include/linux/skbuff.h:1160 ./include/net/route.h:88 net/ipv4/ip_input.c:390) 
[ 27.771720][ C2] veth_poll (drivers/net/veth.c:977) 
[ 27.771724][ C2] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 27.771736][ C2] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 27.771741][ C2] ? process_backlog (net/core/dev.c:6473) 
[ 27.771746][ C2] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 27.771752][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.771758][ C2] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 27.771766][ C2] ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202) 
[ 27.771770][ C2] ? process_backlog (net/core/dev.c:6473) 
[ 27.771775][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.771781][ C2] __napi_poll.constprop.0 (net/core/dev.c:7413) 
[ 27.771784][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.771790][ C2] net_rx_action (net/core/dev.c:7477 net/core/dev.c:7599) 
[ 27.771800][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 27.771804][ C2] ? __pfx_net_rx_action (net/core/dev.c:7561) 
[ 27.771808][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.771812][ C2] ? trace_sched_exit_tp (./include/trace/events/sched.h:829 (discriminator 21)) 
[ 27.771820][ C2] ? __schedule (kernel/sched/core.c:6646) 
[ 27.771830][ C2] ? __pfx___schedule (kernel/sched/core.c:6646) 
[ 27.771842][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 27.771851][ C2] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 27.771856][ C2] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 27.771859][ C2] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 27.771865][ C2] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 27.771869][ C2] kthread (kernel/kthread.c:464) 
[ 27.771874][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 27.771876][ C2] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 27.771881][ C2] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 27.771885][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.771889][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 27.771894][ C2] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 27.771897][ C2] ? __pfx_kthread (kernel/kthread.c:413) 


Finger prints:
lockdep_rcu_suspicious:veth_xdp_rcv:veth_poll:net_rx_action:handle_softirqs